【摘要】 采用共沉淀法制备了SnFeO2.5和SnPbO2两种锡基复合氧化物粉末.XRD分析表明,这两种锡基复合氧化物在26°～28°处都有波峰,属无定形结构;SEM的形貌观察发现SnFeO2.5颗粒分层紧密堆积、团聚在一起,SnPbO2颗粒为棱柱状、表面光滑.将其分别作为Li+电池负极材料的活性物质,利用恒电流电池测试仪研究它们的电化学性能,发现这两种锡基复合氧化物都有较高的电化学容量.更多还原

【Abstract】 The two tin-compounded oxide powders, SnFeO_2.5 and SnPbO₂, were prepared by co-precipitation. It is shown by XRD analysis that the two tin-compounded oxides have wave crest between 26°～28° in character belonging to amorphous structure. It can be observed from the shape of SEM that SnFeO_2.5 particles accumulate close on separation and SnPbO₂ particle is prism. They were used as anode materials for lithium ion batteries respectively, and their electrochemical properties were tested using constant electric current cell tester. Proved by experiments, the two tin-compounded oxides have high electrochemical capacities.更多还原